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| Patents for Lazarus Ruggles | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,236X | Mar. 16, 1810 | D. Tomlinson, L. Ruggles | Method of separating onion seed from grain | miller | |
| 3,391X | Oct. 12, 1821 | L. Ruggles | Machine for cleaning rice | miller | |